EPA Floats Tougher Coal-Plant Air Toxics Rules, Seeking Lignite Parity

EPA is proposing stricter air toxics requirements for power plants, including a lignite plant-specific mercury limit that would establish parity between that sector and other coal plants as well as tougher standards for all facilities regarding “filterable” particulate matter, though officials expect most plants to be able to comply with any new limits. The April 5 proposal also solicits comment on an option that would clamp down even more tightly on particulate emissions, which serve as a surrogate for toxic...